public class StudentTest {

    public static void main(String[] args) {



            //不是私有属性
            student s1 = new student();

//            s1.name = "张三";

            //实际参数
            s1.setName("张三");


            //s1.name
        System.out.println(s1.getName());
        s1.setAge(18);
        System.out.println(s1.getAge());
        s1.setGrade(13);
        System.out.println(s1.getGrade());

        }
    }

